Sewing machine



FIG. 1 is a front view of a sewing machine showing our design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front perspective view thereof;

FIG. 8 is a rear perspective view thereof; and,

FIG. 9 is a front perspective view of the sewing machine, shown with the flat-bed attachment removed. 

The ornamental design for a sewing machine, as shown and described. 